US Bridges

Harbor DR over Chollas Creek

Fair

San Diego County, California · 0.18MI N/O 32nd ST · Structure no. 57C0195

Built
1942
83 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
223 ft
9 main spans
Daily traffic
16,480
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harbor DR over Chollas Creek is a concrete slab carrying Harbor DR over Chollas Creek in San Diego County, California. It was built in 1942, so it is 83 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 16,480 vehicles a day, roughly 2% of them trucks, projected to reach 19,685 by 2046. The structure is 223 ft (68 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHarbor DR
CrossesChollas Creek
Location0.18MI N/O 32nd ST
RouteCity Street 0
Coordinates32.68761, -117.12787
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length223 ft (68 m)
Longest span26 ft (7.9 m)
Deck width72 ft (21.9 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,480 (2024)
Projected traffic19,685 by 2046
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harbor DR over Chollas Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is Harbor DR over Chollas Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Harbor DR over Chollas Creek carry?

About 16,480 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Harbor DR over Chollas Creek?

The structure is 223 ft (68 m) long with a longest span of 26 ft (7.9 m) and a deck 72 ft wide.

Who owns Harbor DR over Chollas Creek?

It is owned by the City or Municipal Highway Agency.